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May 6, 2015

Homework Help: physics

Posted by mk on Tuesday, September 18, 2012 at 10:30pm.

A 3 kg toy car with a speed of 10 m/s collides head-on with a 2 kg car traveling in the opposite direction with a speed of 2 m/s. If the cars are locked together after the collision with a speed of 5.20 m/s, how much kinetic energy is lost?

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